— HOW IT WORKS
Three steps. One clear next move.
Tell us about you.
Answer a few quick questions about your goals, preferences, and starting point.
We narrow the catalog.
Your answers help us guide you to the most relevant route, shortlist, or category.
See your next step.
Continue to the most relevant page and explore your tailored result.
— CATALOG AT A GLANCE
Six routes through the catalog.
— THE PRODUCT FINDER
A faster way to navigate the catalog.
The product finder narrows the catalog by goal, format, and experience level — without telling you what's "correct" or pushing a compound you didn't ask for.
- Personalised single product, shortlist, or full collection
- Filter by experience level and category
- Confidential — answers stay on your device
- Free, no account needed
— FEATURED ROUTES
Most popular starting points.
Each route lines up the catalog for one focus area — start here and the quiz refines it from there.
RECOVERY
↗FROM £98
Tissue-repair starting point.
BPC-157 → TB-500 → combined stack
GH / ANTI-AGEING
↗FROM £92
Step into GH research.
Ipamorelin · CJC-1295 · Tesamorelin
WEIGHT MANAGEMENT
↗FROM £108
Considered weight-management route.
AOD-9604 → Retatrutide
LONGEVITY
↗FROM £92
Longevity-led catalog slice.
GHK-Cu · NAD+ · MOTS-C
How Signal Peptide Works
From research-grade synthesis to your door — every step is precision controlled.
Select Your Peptide
Browse our curated range of research-grade compounds, each with full CoA documentation.
Verified Synthesis
Each batch is independently synthesised to >99% purity and verified by HPLC analysis.
Cold-Chain Dispatch
Orders are packaged in temperature-controlled packaging and dispatched within 48 hours.
Research Ready
Compounds arrive lab-ready with full documentation for your research protocols.
Why Researchers Choose Us
Every compound in our catalogue is backed by peer-reviewed literature, synthesised to pharmaceutical standards, and independently verified.
Pharmaceutical Purity
All peptides verified >99% pure by HPLC/MS analysis with full certificate of analysis included.
Peer-Reviewed Compounds
Every peptide in our range is supported by published clinical and pre-clinical research data.
Precision Formulation
Lyophilised for stability, accurately weighed and sealed under sterile conditions for research integrity.
Find Your Research Focus
Our peptide range spans multiple research areas. Discover which compounds align with your investigative goals.
Tissue Repair & Recovery
BPC-157 and TB-500 are extensively studied for their roles in accelerated tissue repair and musculoskeletal recovery in pre-clinical research models.
BPC-157 · TB-500Cognitive & Neurological
Semax and Selank demonstrate nootropic and anxiolytic properties in research settings, with documented effects on BDNF expression and cognitive function.
Semax · SelankMetabolic Research
AOD-9604, Retatrutide and GHK-Cu are studied for metabolic regulation, body composition, and adipose tissue research applications.
AOD-9604 · RetatrutideLongevity & Cellular Health
NAD+, MOTS-C and GHK-Cu support mitochondrial research, cellular senescence studies, and anti-ageing biology investigations.
NAD+ · MOTS-C · GHK-CuReal Results
"The BPC-157 I ordered arrived quickly with full CoA. HPLC results matched perfectly. Will be ordering again for my ongoing research protocol."
"Outstanding purity verification — every batch I've ordered has come with detailed HPLC charts. The GHK-Cu is exceptional quality. Signal Peptide is now my go-to supplier."
"The NAD+ quality is unmatched. Consistent results across three separate orders. Packaging is excellent and the team responded quickly to my technical questions."
How We Compare
| Feature | Signal Peptide ✦ | Generic Suppliers | Competitors |
|---|---|---|---|
| HPLC Purity Verification | ✓ >99% every batch | ✗ Rarely tested | ✓ Varies |
| Certificate of Analysis | ✓ Included always | ✗ Often missing | ✓ On request |
| Cold-Chain Packaging | ✓ Standard | ✗ Not offered | ⚠ Optional |
| Dispatch Speed | ✓ 48h guaranteed | 5–14 days | 3–7 days |
| Research Documentation | ✓ Full literature | ✗ None | ⚠ Basic only |
| UK-Based Support | ✓ Expert team | ✗ Offshore only | ⚠ Limited |
Subscribe & Save More
Join our Research Partner Programme for priority access, bulk pricing, and dedicated scientific support — designed for serious researchers.
Priority Dispatch
Your orders jump the queue — dispatched within 24 hours.
Volume Pricing
Exclusive tiered pricing on bulk orders and multi-compound purchases.
Dedicated Support
Direct line to our scientific team for protocol and technical questions.
Early Access
First access to new compounds and limited batch releases.
Extended CoA Data
Access to extended analytical data and raw HPLC chromatograms.
Research Billing
Invoice-based ordering available for institutions and research bodies.
Research Resources
Introduction to Research Peptides: What Researchers Need to Know
A comprehensive overview of peptide biology, mechanisms of action, and best practices for laboratory handling.
Read GuideBPC-157: Mechanisms, Research Models & Laboratory Protocols
An in-depth review of BPC-157 research, covering the published literature on tissue regeneration and healing models.
Explore ProductStorage, Reconstitution & Stability — Peptide Handling Best Practices
Essential guidance on storing lyophilised peptides, reconstitution protocols, and maintaining research integrity.
Read FAQFrequently Asked
All Signal Peptide compounds are synthesised to >99% purity and independently verified by HPLC and mass spectrometry analysis. A full Certificate of Analysis is included with every order.
All peptides are lyophilised (freeze-dried) for maximum stability. Orders are dispatched in temperature-controlled packaging within 48 hours of payment confirmation.
No. All Signal Peptide products are sold strictly for research and laboratory use only. They are not intended for human or veterinary use, and must be handled by qualified researchers.
Yes. Every product is accompanied by a batch-specific Certificate of Analysis showing HPLC purity data, molecular weight confirmation, and full QC results.
We stand behind every product. If you're not satisfied with the quality, contact us within 14 days and we'll arrange a replacement or refund. Our team is available to resolve any issues promptly.
Lyophilised peptides should be stored at -20°C for long-term stability. Once reconstituted, store at 4°C and use within 30 days. Avoid repeated freeze-thaw cycles.
Elevate Your Research with Precision Peptides
Join thousands of researchers worldwide who trust Signal Peptide for pharmaceutical-grade compounds, rapid dispatch, and unmatched purity verification.